Bull-gear and driving-wheel for traction-engines.



L. A. LA FOND. BULL GEAR AND DRIVING WHEEL FOR TRACTION ENGINES.

APPLICATION FILED M'Y 5 IQIB. 1 254,241 Patented Jan. 22, 1918:

Law}; A. Law.

- new anduseful Improvements in Bull-Gears LOUIS A. LA FON'D, F MINNEAPOLIS, ldINNESOTA.

BULL-GEAR em) DRIVING-WHEEL ron TRACTION- nema.

Specification of Letters Patent.

Application filed llliay 5, 1916. Serial No. 95,699. I

To all whom, it may concern:

Be it known that I LOUIS A. LA Form, a citizen of the United tates residing a Minneapol is, in the county'fof Hennepin and Statetolilllinnesota, have invented certain and Driving-Wheels for Traction-Engines. T 'Oneohject of my inventionis to provide .means for running a bull gear in an oil tight case, so that the oil may be retained therein, and dust and dirt excluded therefrom.

. Another object of'my invention is to providea rigid and inexpensive means for mounting the bull gear on the driving wheels of the tractor.

With these and incidental objects in view the invention consists of certain novel features bf-construction and combination of i parts, the essential elements of which are 2 hereinafter described with reference to the I so part of this specification. v

In the dra'win Figure 1 is a plan view of the driving w eels of a tractor to which my'invention is applied, with a section taken on the line BB, Fig. 2, to disclose the'indrawing which accompanies and forms a side of the gear case, and Fig. 2 is a section type, has lugs 6, better shown'in Fig. 2, by

' which it'is riveted or bolted to the d1sk3;

The hub flange casting 2 is mounted by suitable roller bearings 7 on the dead axle 8,

' arried by the dead axle 8 the'spool shaped casting 9 carries a suitable roller bearing 10 forthe-bull pinion shaft 11, carrying the bull pinion 12, which meshes with and drives the bull gear 13.

The hull gear casting and the spool shaped casting 9'ha've annular grooves turned therein to receive the felt washer 14, which excludes dust, and retains oil in thegear case formed between the flange of the casting 9,

would of course be identical.

Patented Jan. 22,

the outer ring of the bull gear itself and'thei I disk '3.

Aisprocket and chain 15 serve to dri ie" the bull pinion shaft 11, and the bull pinion While I have described m not wish it understood that I limit myself to this construction, as it is evident that the-zip '55 .7 case and gear of. the other driving .Wheel invention lend j illustrated it in one particu ardesign, I do plication of my invention maybe varied inmany ways within the scope of lowing claims. I Claims: j 1. In a'driving wheel and bull gear, the

the folf Lee combination of a dead shaft, two hub flanges ournaled onsaiddead shaft, a disk 801113811 and rigidly attached thereto, a wheel rim trically mounted on each of said hub flanges 70.

rigidlv carried by the outer periphery'of each 5f saicldisks, a bull ear mounted on, Y

the inner side ofeac'h. of said disks, a double flanged pinion member mounted on said dead shaft, one of, said flangesbeing positioned so" as to close the-inner side of one of said bull gears, and the other of'said fiangesbein positioned so as tojclose the inner'sideo the other of said bull-gears, an aperture in each of said flanges, a bull' pinion shaftjournale'd in said aperture, and a bull pinion at each end of said bull pinion shaft ooacti ng with said bull gears.

- 2. In a driving wheel and bull gear the combination of a dead shaft,a spool shaped pinion support mounted on said shaft and having a flange at each end thereof, each of said flanges having an aperture vtherein,- a

bull pinion shaft journaled in each of said apertures, a bull pinion carried by each of said bull pinion shafts, a disk mounted on each end of said dead shaft, and an internal bull gear carried by each of said'disks and coactmg with the respectivebull pinion, the flanges of said spool shaped pinion su port closing the inner side'of each of sai bull gears, an oil retainer being positioned between each of said bull gears and the 00-21%- ing flange of said support to retain oil within said bull gear.

.- LOUIS LA roan; 

